diff --git a/.github/workflows/continuous_integration.yml b/.github/workflows/continuous_integration.yml
index f6f0ad7e..302e50b7 100644
--- a/.github/workflows/continuous_integration.yml
+++ b/.github/workflows/continuous_integration.yml
@@ -61,3 +61,7 @@ jobs:
       - name: "Lint"
         run: yarn run lint
         working-directory: "back"
+
+      - name: "Jasmine"
+          run: yarn test
+          working-directory: "back"
diff --git a/README.md b/README.md
index 9ed3bea1..d71c3f0b 100644
--- a/README.md
+++ b/README.md
@@ -96,3 +96,6 @@ Vagrant destroy
 * `Vagrant ssh`: connect on your VM Vagrant.
 * `Vagrant halt`: stop your VM Vagrant.
 * `Vagrant destroy`: delete your VM Vagrant.
+
+## Features developed
+You have more details of features developed in back [README.md](./back/README.md).
\ No newline at end of file
diff --git a/back/README.md b/back/README.md
new file mode 100644
index 00000000..8a78f403
--- /dev/null
+++ b/back/README.md
@@ -0,0 +1,61 @@
+# Back Features
+
+## Login
+To start your game, you must authenticate on the server back.
+When you are authenticated, the back server return token and room starting.
+```
+POST => /login 
+Params : 
+    email: email of user.
+```
+
+## Join a room
+When a user is connected, the user can join a room.
+So you must send emit `join-room` with information user:
+```
+Socket.io => 'join-room'
+
+    userId: user id of gamer
+    roomId: room id when user enter in game
+    position: {
+        x: position x on map
+        y: position y on map
+    }
+```
+All data users are stocked on socket client.
+
+## Send position user
+When user move on the map, you can share new position on back with event  `user-position`.
+The information sent:
+```
+Socket.io => 'user-position'
+
+    userId: user id of gamer
+    roomId: room id when user enter in game
+    position: {
+        x: position x on map
+        y: position y on map
+    }
+```
+All data users are updated on socket client.
+
+## Receive positions of all users
+The application sends position of all users in each room in every few 10 milliseconds.
+The data will pushed on event `user-position`:
+```
+Socket.io => 'user-position'
+
+    [
+        {
+            userId: user id of gamer
+            roomId: room id when user enter in game
+            position: {
+                x: position x on map
+                y: position y on map
+            }
+        },
+        ...
+    ]
+```
+
+[<<< back](../README.md) 
\ No newline at end of file
diff --git a/back/jasmine.json b/back/jasmine.json
new file mode 100644
index 00000000..b51ed79d
--- /dev/null
+++ b/back/jasmine.json
@@ -0,0 +1,5 @@
+{
+  "spec_dir": "tests",
+  "spec_files": ["**/*[tT]est.ts"],
+  "stopSpecOnExpectationFailure": false
+}
\ No newline at end of file
diff --git a/back/package.json b/back/package.json
index b86e21c8..4fe7681d 100644
--- a/back/package.json
+++ b/back/package.json
@@ -7,6 +7,7 @@
     "tsc": "tsc",
     "dev": "ts-node-dev --respawn --transpileOnly ./server.ts",
     "prod": "tsc && node ./dist/server.js",
+    "test": "ts-node node_modules/jasmine/bin/jasmine --config=jasmine.json",
     "lint": "node_modules/.bin/eslint src/ . --ext .ts"
   },
   "repository": {
@@ -21,16 +22,22 @@
   "homepage": "https://github.com/thecodingmachine/workadventure#readme",
   "dependencies": {
     "@types/express": "^4.17.4",
+    "@types/http-status-codes": "^1.2.0",
+    "@types/jsonwebtoken": "^8.3.8",
     "@types/socket.io": "^2.1.4",
     "body-parser": "^1.19.0",
     "express": "^4.17.1",
+    "http-status-codes": "^1.4.0",
+    "jsonwebtoken": "^8.5.1",
     "socket.io": "^2.3.0",
     "ts-node-dev": "^1.0.0-pre.44",
     "typescript": "^3.8.3"
   },
   "devDependencies": {
+    "@types/jasmine": "^3.5.10",
     "@typescript-eslint/eslint-plugin": "^2.26.0",
     "@typescript-eslint/parser": "^2.26.0",
-    "eslint": "^6.8.0"
+    "eslint": "^6.8.0",
+    "jasmine": "^3.5.0"
   }
 }
diff --git a/back/src/App.ts b/back/src/App.ts
index f0d391b7..4b3b3c53 100644
--- a/back/src/App.ts
+++ b/back/src/App.ts
@@ -1,7 +1,8 @@
 // lib/app.ts
-import {IoSocketController} from "./Controller/IoSocketController";
+import {IoSocketController} from "./Controller/IoSocketController"; //TODO fix import by "_Controller/..."
+import {AuthenticateController} from "./Controller/AuthenticateController"; //TODO fix import by "_Controller/..."
 import express from "express";
-import {Application} from 'express';
+import {Application, Request, Response} from 'express';
 import bodyParser = require('body-parser');
 import * as http from "http";
 
@@ -9,17 +10,29 @@ class App {
     public app: Application;
     public server: http.Server;
     public ioSocketController: IoSocketController;
+    public authenticateController: AuthenticateController;
 
     constructor() {
         this.app = express();
+
+        //config server http
         this.config();
         this.server = http.createServer(this.app);
+
+        //create controllers
         this.ioSocketController = new IoSocketController(this.server);
+        this.authenticateController = new AuthenticateController(this.app);
     }
 
+    // TODO add session user
     private config(): void {
         this.app.use(bodyParser.json());
         this.app.use(bodyParser.urlencoded({extended: false}));
+        this.app.use(function (req: Request, res: Response, next) {
+            res.header("Access-Control-Allow-Origin", "*"); // update to match the domain you will make the request from
+            res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
+            next();
+        });
     }
 }
 
diff --git a/back/src/Controller/AuthenticateController.ts b/back/src/Controller/AuthenticateController.ts
new file mode 100644
index 00000000..7555c67a
--- /dev/null
+++ b/back/src/Controller/AuthenticateController.ts
@@ -0,0 +1,28 @@
+import {Application, Request, Response} from "express";
+import Jwt from "jsonwebtoken";
+import {BAD_REQUEST, OK} from "http-status-codes";
+import {SECRET_KEY, ROOM} from "../Enum/EnvironmentVariable"; //TODO fix import by "_Enum/..."
+
+export class AuthenticateController{
+    App : Application;
+
+    constructor(App : Application) {
+        this.App = App;
+        this.login();
+    }
+
+    //permit to login on application. Return token to connect on Websocket IO.
+    login(){
+        this.App.post("/login", (req: Request, res: Response) => {
+            let param = req.body;
+            if(!param.email){
+                return res.status(BAD_REQUEST).send({
+                    message: "email parameter is empty"
+                });
+            }
+            //TODO check user email for The Coding Machine game
+            let token = Jwt.sign({email: param.email, roomId: ROOM}, SECRET_KEY, {expiresIn: '24h'});
+            return res.status(OK).send({token: token, roomId: ROOM});
+        });
+    }
+}
\ No newline at end of file
diff --git a/back/src/Controller/IoSocketController.ts b/back/src/Controller/IoSocketController.ts
index 7317ceb7..aa5dfdc9 100644
--- a/back/src/Controller/IoSocketController.ts
+++ b/back/src/Controller/IoSocketController.ts
@@ -1,36 +1,134 @@
 import socketIO = require('socket.io');
 import {Socket} from "socket.io";
 import * as http from "http";
-import {MessageUserPosition} from "@Model/Websocket/MessageUserPosition";
+import {MessageUserPosition} from "../Model/Websocket/MessageUserPosition"; //TODO fix import by "_Model/.."
+import {ExSocketInterface} from "../Model/Websocket/ExSocketInterface"; //TODO fix import by "_Model/.."
+import Jwt, {JsonWebTokenError} from "jsonwebtoken";
+import {SECRET_KEY} from "../Enum/EnvironmentVariable"; //TODO fix import by "_Enum/..."
+import {ExtRooms, RefreshUserPositionFunction} from "../Model/Websocket/ExtRoom";
+import {ExtRoomsInterface} from "_Model/Websocket/ExtRoomsInterface";
 
 export class IoSocketController{
     Io: socketIO.Server;
     constructor(server : http.Server) {
         this.Io = socketIO(server);
+
+        // Authentication with token. it will be decoded and stored in the socket.
+        this.Io.use( (socket: Socket, next) => {
+            if (!socket.handshake.query || !socket.handshake.query.token) {
+                return next(new Error('Authentication error'));
+            }
+            Jwt.verify(socket.handshake.query.token, SECRET_KEY, (err: JsonWebTokenError, tokenDecoded: object) => {
+                if (err) {
+                    return next(new Error('Authentication error'));
+                }
+                (socket as ExSocketInterface).token = tokenDecoded;
+                next();
+            });
+        });
+
         this.ioConnection();
+        this.shareUsersPosition();
     }
 
     ioConnection() {
         this.Io.on('connection',  (socket: Socket) => {
-            //TODO check token access
-
             /*join-rom event permit to join one room.
                 message :
                     userId : user identification
                     roomId: room identification
-                    positionXUser: user x position map
-                    positionYUser: user y position on map
+                    position: position of user in map
+                        x: user x position on map
+                        y: user y position on map
             */
-            socket.on('join-room', (message : MessageUserPosition) => {
-                socket.join(message.roomId);
+            socket.on('join-room', (message : string) => {
+                let messageUserPosition = this.hydrateMessageReceive(message);
+                if(messageUserPosition instanceof Error){
+                    return socket.emit("message-error", JSON.stringify({message: messageUserPosition.message}))
+                }
+
+                //join user in room
+                socket.join(messageUserPosition.roomId);
+
                 // sending to all clients in room except sender
-                socket.to(message.roomId).emit('join-room', message.toString());
+                this.saveUserInformation((socket as ExSocketInterface), messageUserPosition);
+
+                //add function to refresh position user in real time.
+                let rooms = (this.Io.sockets.adapter.rooms as ExtRoomsInterface);
+                rooms.refreshUserPosition = RefreshUserPositionFunction;
+                rooms.refreshUserPosition(rooms, this.Io);
+
+                socket.to(messageUserPosition.roomId).emit('join-room', messageUserPosition.toString());
             });
 
-            socket.on('user-position', (message : MessageUserPosition) => {
+            socket.on('user-position', (message : string) => {
+                let messageUserPosition = this.hydrateMessageReceive(message);
+                if (messageUserPosition instanceof Error) {
+                    return socket.emit("message-error", JSON.stringify({message: messageUserPosition.message}));
+                }
+
                 // sending to all clients in room except sender
-                socket.to(message.roomId).emit('join-room', message.toString());
+                this.saveUserInformation((socket as ExSocketInterface), messageUserPosition);
+
+                //refresh position of all user in all rooms in real time
+                let rooms = (this.Io.sockets.adapter.rooms as ExtRoomsInterface)
+                rooms.refreshUserPosition(rooms, this.Io);
             });
         });
     }
-}
\ No newline at end of file
+
+    //permit to save user position in socket
+    saveUserInformation(socket : ExSocketInterface, message : MessageUserPosition){
+        socket.position = message.position;
+        socket.roomId = message.roomId;
+        socket.userId = message.userId;
+    }
+
+    //Hydrate and manage error
+    hydrateMessageReceive(message : string) : MessageUserPosition | Error{
+        try {
+            return new MessageUserPosition(message);
+        }catch (err) {
+            //TODO log error
+            return new Error(err);
+        }
+    }
+
+    /** permit to share user position
+        ** users position will send in event 'user-position'
+        ** The data sent is an array with information for each user :
+        [
+          {
+            userId: <string>,
+            roomId: <string>,
+            position: {
+                x : <number>,
+                y : <number>
+            }
+          },
+          ...
+        ]
+     **/
+    seTimeOutInProgress : any = null;
+    shareUsersPosition(){
+        if(this.seTimeOutInProgress){
+            clearTimeout(this.seTimeOutInProgress);
+        }
+        //send for each room, all data of position user
+        let arrayMap = (this.Io.sockets.adapter.rooms as ExtRooms).userPositionMapByRoom;
+        if(!arrayMap){
+            this.seTimeOutInProgress = setTimeout(() => {
+                this.shareUsersPosition();
+            }, 10);
+            return;
+        }
+        arrayMap.forEach((value : any) => {
+            let roomId = value[0];
+            let data = value[1];
+            this.Io.in(roomId).emit('user-position', JSON.stringify(data));
+        });
+        this.seTimeOutInProgress = setTimeout(() => {
+            this.shareUsersPosition();
+        }, 10);
+    }
+}
diff --git a/back/src/Enum/EnvironmentVariable.ts b/back/src/Enum/EnvironmentVariable.ts
new file mode 100644
index 00000000..f795bf90
--- /dev/null
+++ b/back/src/Enum/EnvironmentVariable.ts
@@ -0,0 +1,7 @@
+const SECRET_KEY = process.env.SECRET_KEY || "THECODINGMACHINE_SECRET_KEY";
+const ROOM = process.env.ROOM || "THECODINGMACHINE";
+
+export {
+    SECRET_KEY,
+    ROOM
+}
\ No newline at end of file
diff --git a/back/src/Model/Websocket/ExSocketInterface.ts b/back/src/Model/Websocket/ExSocketInterface.ts
new file mode 100644
index 00000000..095d3cbc
--- /dev/null
+++ b/back/src/Model/Websocket/ExSocketInterface.ts
@@ -0,0 +1,9 @@
+import {Socket} from "socket.io";
+import {PointInterface} from "./PointInterface";
+
+export interface ExSocketInterface extends Socket {
+    token: any;
+    roomId: string;
+    userId: string;
+    position: PointInterface;
+}
\ No newline at end of file
diff --git a/back/src/Model/Websocket/ExtRoom.ts b/back/src/Model/Websocket/ExtRoom.ts
new file mode 100644
index 00000000..0cbe2f61
--- /dev/null
+++ b/back/src/Model/Websocket/ExtRoom.ts
@@ -0,0 +1,42 @@
+import {ExtRoomsInterface} from "./ExtRoomsInterface";
+import socketIO = require('socket.io');
+import {ExSocketInterface} from "_Model/Websocket/ExSocketInterface";
+
+export class ExtRooms implements ExtRoomsInterface{
+    userPositionMapByRoom: any;
+    refreshUserPosition: any;
+
+    [room: string]: SocketIO.Room;
+}
+
+let RefreshUserPositionFunction = function(rooms : ExtRooms, Io: socketIO.Server){
+    let clients = Io.clients();
+    let socketsKey = Object.keys(Io.clients().sockets);
+
+    //create mapping with all users in all rooms
+    let mapPositionUserByRoom = new Map();
+    for(let i = 0; i < socketsKey.length; i++){
+        let socket = clients.sockets[socketsKey[i]] as ExSocketInterface;
+        if(!socket.position){
+            continue;
+        }
+        let data = {
+            userId : socket.userId,
+            roomId : socket.roomId,
+            position : socket.position,
+        };
+        let dataArray = <any>[];
+        if(mapPositionUserByRoom.get(data.roomId)){
+            dataArray = mapPositionUserByRoom.get(data.roomId);
+            dataArray.push(data);
+        }else{
+            dataArray = [data];
+        }
+        mapPositionUserByRoom.set(data.roomId, dataArray);
+    }
+    rooms.userPositionMapByRoom = Array.from(mapPositionUserByRoom);
+}
+
+export {
+    RefreshUserPositionFunction
+}
\ No newline at end of file
diff --git a/back/src/Model/Websocket/ExtRoomsInterface.ts b/back/src/Model/Websocket/ExtRoomsInterface.ts
new file mode 100644
index 00000000..a71fcbf9
--- /dev/null
+++ b/back/src/Model/Websocket/ExtRoomsInterface.ts
@@ -0,0 +1,6 @@
+import {Rooms} from "socket.io";
+
+export interface ExtRoomsInterface extends Rooms{
+    userPositionMapByRoom: any;
+    refreshUserPosition: any;
+}
\ No newline at end of file
diff --git a/back/src/Model/Websocket/Message.ts b/back/src/Model/Websocket/Message.ts
index 4fc340a6..8e6f2c9a 100644
--- a/back/src/Model/Websocket/Message.ts
+++ b/back/src/Model/Websocket/Message.ts
@@ -4,6 +4,9 @@ export class Message {
 
     constructor(message: string) {
         let data = JSON.parse(message);
+        if(!data.userId || !data.roomId){
+            throw Error("userId or roomId cannot be null");
+        }
         this.userId = data.userId;
         this.roomId = data.roomId;
     }
diff --git a/back/src/Model/Websocket/MessageUserPosition.ts b/back/src/Model/Websocket/MessageUserPosition.ts
index b37b5089..493f1457 100644
--- a/back/src/Model/Websocket/MessageUserPosition.ts
+++ b/back/src/Model/Websocket/MessageUserPosition.ts
@@ -1,14 +1,33 @@
 import {Message} from "./Message";
+import {PointInterface} from "./PointInterface";
+
+export class Point implements PointInterface{
+    x: number;
+    y: number;
+
+    constructor(x : number, y : number) {
+        if(x === null || y === null){
+            throw Error("position x and y cannot be null");
+        }
+        this.x = x;
+        this.y = y;
+    }
+
+    toJson(){
+        return {
+            x : this.x,
+            y: this.y
+        }
+    }
+}
 
 export class MessageUserPosition extends Message{
-    positionXUser: string;
-    positionYUser: string;
+    position: PointInterface;
 
     constructor(message: string) {
         super(message);
         let data = JSON.parse(message);
-        this.positionXUser = data.positionXUser;
-        this.positionYUser = data.positionYUser;
+        this.position = new Point(data.position.x, data.position.y);
     }
 
     toString() {
@@ -16,8 +35,7 @@ export class MessageUserPosition extends Message{
             Object.assign(
                 super.toJson(),
                 {
-                    positionXUser: this.positionXUser,
-                    positionYUser: this.positionYUser
+                    position: this.position.toJson()
                 })
         );
     }
diff --git a/back/src/Model/Websocket/PointInterface.ts b/back/src/Model/Websocket/PointInterface.ts
new file mode 100644
index 00000000..7f2ab39a
--- /dev/null
+++ b/back/src/Model/Websocket/PointInterface.ts
@@ -0,0 +1,5 @@
+export interface PointInterface {
+    x: number;
+    y: number;
+    toJson() : object;
+}
\ No newline at end of file
diff --git a/back/tests/MessageTest.ts b/back/tests/MessageTest.ts
new file mode 100644
index 00000000..69d57fce
--- /dev/null
+++ b/back/tests/MessageTest.ts
@@ -0,0 +1,31 @@
+import "jasmine";
+import {Message} from "../src/Model/Websocket/Message";
+
+describe("Message Model", () => {
+    it("should find userId and roomId", () => {
+        let message = JSON.stringify({userId: "test1", roomId: "test2"});
+        let messageObject = new Message(message);
+        expect(messageObject.userId).toBe("test1");
+        expect(messageObject.roomId).toBe("test2");
+    })
+
+    it("should expose a toJson method", () => {
+        let message = JSON.stringify({userId: "test1", roomId: "test2"});
+        let messageObject = new Message(message);
+        expect(messageObject.toJson()).toEqual({userId: "test1", roomId: "test2"});
+    })
+
+    it("should find throw error when no userId", () => {
+        let message = JSON.stringify({roomId: "test2"});
+        expect(() => {
+            let messageObject = new Message(message);
+        }).toThrow(new Error("userId or roomId cannot be null"));
+    })
+
+    it("should find throw error when no roomId", () => {
+        let message = JSON.stringify({userId: "test1"});
+        expect(() => {
+            let messageObject = new Message(message);
+        }).toThrow(new Error("userId or roomId cannot be null"));
+    })
+})
\ No newline at end of file
diff --git a/back/tsconfig.json b/back/tsconfig.json
index d208ee64..7686fb67 100644
--- a/back/tsconfig.json
+++ b/back/tsconfig.json
@@ -43,8 +43,9 @@
     "moduleResolution": "node",               /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
     "baseUrl": ".",                           /* Base directory to resolve non-absolute module names. */
     "paths": {
-      "@Controller/*": ["src/Controller/*"],
-      "@Model/*": ["src/Model/*"]
+      "_Controller/*": ["src/Controller/*"],
+      "_Model/*": ["src/Model/*"],
+      "_Enum/*": ["src/Enum/*"]
     },                                        /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
     // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
     // "typeRoots": [],                       /* List of folders to include type definitions from. */
diff --git a/back/yarn.lock b/back/yarn.lock
index e2c5879c..27f4503e 100644
--- a/back/yarn.lock
+++ b/back/yarn.lock
@@ -66,11 +66,30 @@
     "@types/qs" "*"
     "@types/serve-static" "*"
 
+"@types/http-status-codes@^1.2.0":
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/@types/http-status-codes/-/http-status-codes-1.2.0.tgz#6e5244835aaf7164dd306f1d4d2dfdbb2159d909"
+  integrity sha512-vjpjevMaxtrtdrrV/TQNIFT7mKL8nvIKG7G/LjMDZdVvqRxRg5SNfGkeuSaowVc0rbK8xDA2d/Etunyb5GyzzA==
+  dependencies:
+    http-status-codes "*"
+
+"@types/jasmine@^3.5.10":
+  version "3.5.10"
+  resolved "https://registry.yarnpkg.com/@types/jasmine/-/jasmine-3.5.10.tgz#a1a41012012b5da9d4b205ba9eba58f6cce2ab7b"
+  integrity sha512-3F8qpwBAiVc5+HPJeXJpbrl+XjawGmciN5LgiO7Gv1pl1RHtjoMNqZpqEksaPJW05ViKe8snYInRs6xB25Xdew==
+
 "@types/json-schema@^7.0.3":
   version "7.0.4"
   resolved "https://registry.yarnpkg.com/@types/json-schema/-/json-schema-7.0.4.tgz#38fd73ddfd9b55abb1e1b2ed578cb55bd7b7d339"
   integrity sha512-8+KAKzEvSUdeo+kmqnKrqgeE+LcA0tjYWFY7RPProVYwnqDjukzO+3b6dLD56rYX5TdWejnEOLJYOIeh4CXKuA==
 
+"@types/jsonwebtoken@^8.3.8":
+  version "8.3.8"
+  resolved "https://registry.yarnpkg.com/@types/jsonwebtoken/-/jsonwebtoken-8.3.8.tgz#b27c9156dde2049ae03e56528a53ef5a8294aa82"
+  integrity sha512-g2ke5+AR/RKYpQxd+HJ2yisLHGuOV0uourOcPtKlcT5Zqv4wFg9vKhFpXEztN4H/6Y6RSUKioz/2PTFPP30CTA==
+  dependencies:
+    "@types/node" "*"
+
 "@types/mime@*":
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/@types/mime/-/mime-2.0.1.tgz#dc488842312a7f075149312905b5e3c0b054c79d"
@@ -317,6 +336,11 @@ brace-expansion@^1.1.7:
     balanced-match "^1.0.0"
     concat-map "0.0.1"
 
+buffer-equal-constant-time@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/buffer-equal-constant-time/-/buffer-equal-constant-time-1.0.1.tgz#f8e71132f7ffe6e01a5c9697a4c6f3e48d5cc819"
+  integrity sha1-+OcRMvf/5uAaXJaXpMbz5I1cyBk=
+
 buffer-from@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.1.tgz#32713bc028f75c02fdb710d7c7bcec1f2c6070ef"
@@ -546,6 +570,13 @@ dynamic-dedupe@^0.3.0:
   dependencies:
     xtend "^4.0.0"
 
+ecdsa-sig-formatter@1.0.11:
+  version "1.0.11"
+  resolved "https://registry.yarnpkg.com/ecdsa-sig-formatter/-/ecdsa-sig-formatter-1.0.11.tgz#ae0f0fa2d85045ef14a817daa3ce9acd0489e5bf"
+  integrity sha512-nagl3RYrbNv6kQkeJIpt6NJZy8twLB/2vtz6yN9Z4vRKHN4/QZJIEbqohALSgwKdnksuY3k5Addp5lg8sVoVcQ==
+  dependencies:
+    safe-buffer "^5.0.1"
+
 ee-first@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
@@ -889,7 +920,7 @@ glob-parent@^5.0.0:
   dependencies:
     is-glob "^4.0.1"
 
-glob@^7.1.3, glob@^7.1.6:
+glob@^7.1.3, glob@^7.1.4, glob@^7.1.6:
   version "7.1.6"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.6.tgz#141f33b81a7c2492e125594307480c46679278a6"
   integrity sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==
@@ -967,6 +998,11 @@ http-errors@~1.7.2:
     statuses ">= 1.5.0 < 2"
     toidentifier "1.0.0"
 
+http-status-codes@*, http-status-codes@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/http-status-codes/-/http-status-codes-1.4.0.tgz#6e4c15d16ff3a9e2df03b89f3a55e1aae05fb477"
+  integrity sha512-JrT3ua+WgH8zBD3HEJYbeEgnuQaAnUeRRko/YojPAJjGmIfGD3KPU/asLdsLwKjfxOmQe5nXMQ0pt/7MyapVbQ==
+
 iconv-lite@0.4.24, iconv-lite@^0.4.24:
   version "0.4.24"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"
@@ -1103,6 +1139,19 @@ isexe@^2.0.0:
   resolved "https://registry.yarnpkg.com/isexe/-/isexe-2.0.0.tgz#e8fbf374dc556ff8947a10dcb0572d633f2cfa10"
   integrity sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=
 
+jasmine-core@~3.5.0:
+  version "3.5.0"
+  resolved "https://registry.yarnpkg.com/jasmine-core/-/jasmine-core-3.5.0.tgz#132c23e645af96d85c8bca13c8758b18429fc1e4"
+  integrity sha512-nCeAiw37MIMA9w9IXso7bRaLl+c/ef3wnxsoSAlYrzS+Ot0zTG6nU8G/cIfGkqpkjX2wNaIW9RFG0TwIFnG6bA==
+
+jasmine@^3.5.0:
+  version "3.5.0"
+  resolved "https://registry.yarnpkg.com/jasmine/-/jasmine-3.5.0.tgz#7101eabfd043a1fc82ac24e0ab6ec56081357f9e"
+  integrity sha512-DYypSryORqzsGoMazemIHUfMkXM7I7easFaxAvNM3Mr6Xz3Fy36TupTrAOxZWN8MVKEU5xECv22J4tUQf3uBzQ==
+  dependencies:
+    glob "^7.1.4"
+    jasmine-core "~3.5.0"
+
 js-tokens@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
@@ -1126,6 +1175,39 @@ json-stable-stringify-without-jsonify@^1.0.1:
   resolved "https://registry.yarnpkg.com/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz#9db7b59496ad3f3cfef30a75142d2d930ad72651"
   integrity sha1-nbe1lJatPzz+8wp1FC0tkwrXJlE=
 
+jsonwebtoken@^8.5.1:
+  version "8.5.1"
+  resolved "https://registry.yarnpkg.com/jsonwebtoken/-/jsonwebtoken-8.5.1.tgz#00e71e0b8df54c2121a1f26137df2280673bcc0d"
+  integrity sha512-XjwVfRS6jTMsqYs0EsuJ4LGxXV14zQybNd4L2r0UvbVnSF9Af8x7p5MzbJ90Ioz/9TI41/hTCvznF/loiSzn8w==
+  dependencies:
+    jws "^3.2.2"
+    lodash.includes "^4.3.0"
+    lodash.isboolean "^3.0.3"
+    lodash.isinteger "^4.0.4"
+    lodash.isnumber "^3.0.3"
+    lodash.isplainobject "^4.0.6"
+    lodash.isstring "^4.0.1"
+    lodash.once "^4.0.0"
+    ms "^2.1.1"
+    semver "^5.6.0"
+
+jwa@^1.4.1:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/jwa/-/jwa-1.4.1.tgz#743c32985cb9e98655530d53641b66c8645b039a"
+  integrity sha512-qiLX/xhEEFKUAJ6FiBMbes3w9ATzyk5W7Hvzpa/SLYdxNtng+gcurvrI7TbACjIXlsJyr05/S1oUhZrc63evQA==
+  dependencies:
+    buffer-equal-constant-time "1.0.1"
+    ecdsa-sig-formatter "1.0.11"
+    safe-buffer "^5.0.1"
+
+jws@^3.2.2:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/jws/-/jws-3.2.2.tgz#001099f3639468c9414000e99995fa52fb478304"
+  integrity sha512-YHlZCB6lMTllWDtSPHz/ZXTsi8S00usEV6v1tjq8tOUZzw7DpSDWVXjXDre6ed1w/pd495ODpHZYSdkRTsa0HA==
+  dependencies:
+    jwa "^1.4.1"
+    safe-buffer "^5.0.1"
+
 levn@^0.3.0, levn@~0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/levn/-/levn-0.3.0.tgz#3b09924edf9f083c0490fdd4c0bc4421e04764ee"
@@ -1145,6 +1227,41 @@ load-json-file@^1.0.0:
     pinkie-promise "^2.0.0"
     strip-bom "^2.0.0"
 
+lodash.includes@^4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/lodash.includes/-/lodash.includes-4.3.0.tgz#60bb98a87cb923c68ca1e51325483314849f553f"
+  integrity sha1-YLuYqHy5I8aMoeUTJUgzFISfVT8=
+
+lodash.isboolean@^3.0.3:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/lodash.isboolean/-/lodash.isboolean-3.0.3.tgz#6c2e171db2a257cd96802fd43b01b20d5f5870f6"
+  integrity sha1-bC4XHbKiV82WgC/UOwGyDV9YcPY=
+
+lodash.isinteger@^4.0.4:
+  version "4.0.4"
+  resolved "https://registry.yarnpkg.com/lodash.isinteger/-/lodash.isinteger-4.0.4.tgz#619c0af3d03f8b04c31f5882840b77b11cd68343"
+  integrity sha1-YZwK89A/iwTDH1iChAt3sRzWg0M=
+
+lodash.isnumber@^3.0.3:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/lodash.isnumber/-/lodash.isnumber-3.0.3.tgz#3ce76810c5928d03352301ac287317f11c0b1ffc"
+  integrity sha1-POdoEMWSjQM1IwGsKHMX8RwLH/w=
+
+lodash.isplainobject@^4.0.6:
+  version "4.0.6"
+  resolved "https://registry.yarnpkg.com/lodash.isplainobject/-/lodash.isplainobject-4.0.6.tgz#7c526a52d89b45c45cc690b88163be0497f550cb"
+  integrity sha1-fFJqUtibRcRcxpC4gWO+BJf1UMs=
+
+lodash.isstring@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/lodash.isstring/-/lodash.isstring-4.0.1.tgz#d527dfb5456eca7cc9bb95d5daeaf88ba54a5451"
+  integrity sha1-1SfftUVuynzJu5XV2ur4i6VKVFE=
+
+lodash.once@^4.0.0:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/lodash.once/-/lodash.once-4.1.1.tgz#0dd3971213c7c56df880977d504c88fb471a97ac"
+  integrity sha1-DdOXEhPHxW34gJd9UEyI+0cal6w=
+
 lodash@^4.17.14, lodash@^4.17.15:
   version "4.17.15"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
@@ -1568,12 +1685,17 @@ safe-buffer@5.1.2:
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
   integrity sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==
 
+safe-buffer@^5.0.1:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.0.tgz#b74daec49b1148f88c64b68d49b1e815c1f2f519"
+  integrity sha512-fZEwUGbVl7kouZs1jCdMLdt95hdIv0ZeHg6L7qPeciMZhZ+/gdesW4wgTARkrFWEpspjEATAzUGPG8N2jJiwbg==
+
 "safer-buffer@>= 2.1.2 < 3":
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
   integrity sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==
 
-"semver@2 || 3 || 4 || 5", semver@^5.5.0:
+"semver@2 || 3 || 4 || 5", semver@^5.5.0, semver@^5.6.0:
   version "5.7.1"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.1.tgz#a954f931aeba508d307bbf069eff0c01c96116f7"
   integrity sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==
diff --git a/docker-compose.yaml b/docker-compose.yaml
index 86923563..a23a5204 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -29,6 +29,7 @@ services:
     command: yarn dev
     environment:
       STARTUP_COMMAND_1: yarn install
+      SECRET_KEY: yourSecretKey
     volumes:
       - ./back:/usr/src/app
     labels:
diff --git a/front/package.json b/front/package.json
index dae1eb8c..25d613e6 100644
--- a/front/package.json
+++ b/front/package.json
@@ -14,7 +14,10 @@
     "webpack-dev-server": "^3.10.3"
   },
   "dependencies": {
-    "phaser": "^3.22.0"
+    "@types/axios": "^0.14.0",
+    "@types/socket.io-client": "^1.4.32",
+    "phaser": "^3.22.0",
+    "socket.io-client": "^2.3.0"
   },
   "scripts": {
     "start": "webpack-dev-server --open",
diff --git a/front/src/Connexion.ts b/front/src/Connexion.ts
new file mode 100644
index 00000000..4f094152
--- /dev/null
+++ b/front/src/Connexion.ts
@@ -0,0 +1,148 @@
+const SocketIo = require('socket.io-client');
+import Axios from "axios";
+import {API_URL} from "./Enum/EnvironmentVariable";
+
+export interface PointInterface {
+    x: number;
+    y: number;
+    toJson() : object;
+}
+
+export class Message {
+    userId: string;
+    roomId: string;
+
+    constructor(userId : string, roomId : string) {
+        this.userId = userId;
+        this.roomId = roomId;
+    }
+
+    toJson() {
+        return {
+            userId: this.userId,
+            roomId: this.roomId,
+        }
+    }
+}
+
+export class Point implements PointInterface{
+    x: number;
+    y: number;
+
+    constructor(x : number, y : number) {
+        if(x  === null || y === null){
+            throw Error("position x and y cannot be null");
+        }
+        this.x = x;
+        this.y = y;
+    }
+
+    toJson(){
+        return {
+            x : this.x,
+            y: this.y
+        }
+    }
+}
+
+export class MessageUserPosition extends Message{
+    position: PointInterface;
+
+    constructor(userId : string, roomId : string, point : Point) {
+        super(userId, roomId);
+        this.position = point;
+    }
+
+    toString() {
+        return JSON.stringify(
+            Object.assign(
+                super.toJson(),
+                {
+                    position: this.position.toJson()
+                })
+        );
+    }
+}
+
+export class Connexion {
+    socket : any;
+    token : string;
+    email : string;
+    startedRoom : string;
+
+    constructor(email : string) {
+        this.email = email;
+        Axios.post(`${API_URL}/login`, {email: email})
+            .then((res) => {
+                this.token = res.data.token;
+                this.startedRoom = res.data.roomId;
+
+                this.socket = SocketIo(`${API_URL}`, {
+                    query: {
+                        token: this.token
+                    }
+                });
+
+                //join the room
+                this.joinARoom(this.startedRoom);
+
+                //share your first position
+                this.sharePosition(0, 0);
+
+                //create listen event to get all data user shared by the back
+                this.positionOfAllUser();
+
+                this.errorMessage();
+            })
+            .catch((err) => {
+                console.error(err);
+                throw err;
+            });
+    }
+
+    /**
+     * Permit to join a room
+     * @param roomId
+     */
+    joinARoom(roomId : string){
+        let messageUserPosition = new MessageUserPosition(this.email, this.startedRoom, new Point(0, 0));
+        this.socket.emit('join-room', messageUserPosition.toString());
+    }
+
+    /**
+     * Permit to share your position in map
+     * @param x
+     * @param y
+     */
+    sharePosition(x : number, y : number){
+        let messageUserPosition = new MessageUserPosition(this.email, this.startedRoom, new Point(x, y));
+        this.socket.emit('user-position', messageUserPosition.toString());
+    }
+
+    /**
+     * The data sent is an array with information for each user :
+     * [
+     * {
+     *       userId: <string>,
+     *       roomId: <string>,
+     *       position: {
+     *           x : <number>,
+     *           y : <number>
+     *       }
+     *     },
+     * ...
+     * ]
+     **/
+    positionOfAllUser(){
+        this.socket.on("user-position", (message : string) => {
+            //TODO show all user in map
+            console.info("user-position", message);
+        });
+    }
+
+    errorMessage(){
+        this.socket.on('message-error', (message : string) => {
+            console.error("message-error", message);
+        })
+    }
+}
\ No newline at end of file
diff --git a/front/src/Enum/EnvironmentVariable.ts b/front/src/Enum/EnvironmentVariable.ts
new file mode 100644
index 00000000..0e10e789
--- /dev/null
+++ b/front/src/Enum/EnvironmentVariable.ts
@@ -0,0 +1,5 @@
+const API_URL = process.env.API_URL || "http://api.workadventure.localhost";
+
+export {
+    API_URL
+}
\ No newline at end of file
diff --git a/front/src/GameScene.ts b/front/src/GameScene.ts
index b8723574..114fb918 100644
--- a/front/src/GameScene.ts
+++ b/front/src/GameScene.ts
@@ -1,5 +1,14 @@
 
 export class GameScene extends Phaser.Scene {
+    private keyZ: Phaser.Input.Keyboard.Key;
+    private keyQ: Phaser.Input.Keyboard.Key;
+    private keyS: Phaser.Input.Keyboard.Key;
+    private keyD: Phaser.Input.Keyboard.Key;
+    private keyRight: Phaser.Input.Keyboard.Key;
+    private keyLeft: Phaser.Input.Keyboard.Key;
+    private keyUp: Phaser.Input.Keyboard.Key;
+    private keyDown: Phaser.Input.Keyboard.Key;
+    private keyShift: Phaser.Input.Keyboard.Key;
 
     constructor() {
         super({
@@ -17,6 +26,22 @@ export class GameScene extends Phaser.Scene {
     }
 
     init(): void {
+        this.keyShift = this.input.keyboard.addKey(Phaser.Input.Keyboard.KeyCodes.SHIFT);
+        
+        this.keyZ = this.input.keyboard.addKey(Phaser.Input.Keyboard.KeyCodes.Z);
+        this.keyQ = this.input.keyboard.addKey(Phaser.Input.Keyboard.KeyCodes.Q);
+        this.keyS = this.input.keyboard.addKey(Phaser.Input.Keyboard.KeyCodes.S);
+        this.keyD = this.input.keyboard.addKey(Phaser.Input.Keyboard.KeyCodes.D);
+
+        this.keyUp = this.input.keyboard.addKey(Phaser.Input.Keyboard.KeyCodes.UP);
+        this.keyLeft = this.input.keyboard.addKey(Phaser.Input.Keyboard.KeyCodes.LEFT);
+        this.keyDown = this.input.keyboard.addKey(Phaser.Input.Keyboard.KeyCodes.DOWN);
+        this.keyRight = this.input.keyboard.addKey(Phaser.Input.Keyboard.KeyCodes.RIGHT);
+    }
+    
+    private moveCamera(x:number, y:number, speedMultiplier: number): void {
+        this.cameras.main.scrollX += speedMultiplier * 2 * x;
+        this.cameras.main.scrollY += speedMultiplier * 2 * y;
     }
 
     create(): void {
@@ -66,9 +91,25 @@ export class GameScene extends Phaser.Scene {
     private angle: number = 0;
 
     update(dt: number): void {
-        this.cameras.main.scrollX = Math.floor(300 + 300 * Math.cos(this.angle));
+        let speedMultiplier = this.keyShift.isDown ? 5 : 1;
+        
+        
+        if (this.keyZ.isDown || this.keyUp.isDown) {
+            this.moveCamera(0, -1, speedMultiplier);
+        }
+        if (this.keyQ.isDown || this.keyLeft.isDown) {
+            this.moveCamera(-1, 0, speedMultiplier);
+        }
+        if (this.keyS.isDown || this.keyDown.isDown) {
+            this.moveCamera(0, 1, speedMultiplier);
+        }
+        if (this.keyD.isDown || this.keyRight.isDown) {
+            this.moveCamera(1, 0, speedMultiplier);
+        }
+        
+        /*this.cameras.main.scrollX = Math.floor(300 + 300 * Math.cos(this.angle));
         this.cameras.main.scrollY = Math.floor(300 + 300 * Math.sin(this.angle));
 
-        this.angle = dt * 0.0001;
+        this.angle = dt * 0.0001;*/
     }
 }
diff --git a/front/src/index.ts b/front/src/index.ts
index 9038a9c7..9c7c0e8a 100644
--- a/front/src/index.ts
+++ b/front/src/index.ts
@@ -1,6 +1,7 @@
 import 'phaser';
 import GameConfig = Phaser.Types.Core.GameConfig;
 import {GameScene} from "./GameScene";
+import {Connexion} from "./Connexion";
 
 const resolution = 2;
 
@@ -18,3 +19,5 @@ let game = new Phaser.Game(config);
 window.addEventListener('resize', function (event) {
     game.scale.resize(window.innerWidth / resolution, window.innerHeight / resolution);
 });
+
+const connexion = new Connexion("test@gmail.com");
diff --git a/front/yarn.lock b/front/yarn.lock
index e2ec8385..c9b34f3f 100644
--- a/front/yarn.lock
+++ b/front/yarn.lock
@@ -23,6 +23,13 @@
     chalk "^2.0.0"
     js-tokens "^4.0.0"
 
+"@types/axios@^0.14.0":
+  version "0.14.0"
+  resolved "https://registry.yarnpkg.com/@types/axios/-/axios-0.14.0.tgz#ec2300fbe7d7dddd7eb9d3abf87999964cafce46"
+  integrity sha1-7CMA++fX3d1+udOr+HmZlkyvzkY=
+  dependencies:
+    axios "*"
+
 "@types/color-name@^1.1.1":
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/@types/color-name/-/color-name-1.1.1.tgz#1c1261bbeaa10a8055bbc5d8ab84b7b2afc846a0"
@@ -58,6 +65,11 @@
   version "13.11.0"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-13.11.0.tgz#390ea202539c61c8fa6ba4428b57e05bc36dc47b"
 
+"@types/socket.io-client@^1.4.32":
+  version "1.4.32"
+  resolved "https://registry.yarnpkg.com/@types/socket.io-client/-/socket.io-client-1.4.32.tgz#988a65a0386c274b1c22a55377fab6a30789ac14"
+  integrity sha512-Vs55Kq8F+OWvy1RLA31rT+cAyemzgm0EWNeax6BWF8H7QiiOYMJIdcwSDdm5LVgfEkoepsWkS+40+WNb7BUMbg==
+
 "@typescript-eslint/eslint-plugin@^2.26.0":
   version "2.26.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-2.26.0.tgz#04c96560c8981421e5a9caad8394192363cc423f"
@@ -257,6 +269,11 @@ acorn@^7.1.1:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-7.1.1.tgz#e35668de0b402f359de515c5482a1ab9f89a69bf"
   integrity sha512-add7dgA5ppRPxCFJoAGfMDi7PIBXq1RtGo7BhbLaxwrXPOmw8gq48Y9ozT01hUKy9byMjlR20EJhu5zlkErEkg==
 
+after@0.8.2:
+  version "0.8.2"
+  resolved "https://registry.yarnpkg.com/after/-/after-0.8.2.tgz#fedb394f9f0e02aa9768e702bda23b505fae7e1f"
+  integrity sha1-/ts5T58OAqqXaOcCvaI7UF+ufh8=
+
 ajv-errors@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/ajv-errors/-/ajv-errors-1.0.1.tgz#f35986aceb91afadec4102fbd85014950cefa64d"
@@ -372,6 +389,11 @@ array-unique@^0.3.2:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.3.2.tgz#a894b75d4bc4f6cd679ef3244a9fd8f46ae2d428"
 
+arraybuffer.slice@~0.0.7:
+  version "0.0.7"
+  resolved "https://registry.yarnpkg.com/arraybuffer.slice/-/arraybuffer.slice-0.0.7.tgz#3bbc4275dd584cc1b10809b89d4e8b63a69e7675"
+  integrity sha512-wGUIVQXuehL5TCqQun8OW81jGzAWycqzFF8lFp+GOM5BXLYj3bKNsYC4daB7n6XjCqxQA/qgTJ+8ANR3acjrog==
+
 asn1.js@^4.0.0:
   version "4.10.1"
   resolved "https://registry.yarnpkg.com/asn1.js/-/asn1.js-4.10.1.tgz#b9c2bf5805f1e64aadeed6df3a2bfafb5a73f5a0"
@@ -414,10 +436,27 @@ atob@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.2.tgz#6d9517eb9e030d2436666651e86bd9f6f13533c9"
 
+axios@*:
+  version "0.19.2"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-0.19.2.tgz#3ea36c5d8818d0d5f8a8a97a6d36b86cdc00cb27"
+  integrity sha512-fjgm5MvRHLhx+osE2xoekY70AhARk3a6hkN+3Io1jc00jtquGvxYlKlsFUhmUET0V5te6CcZI7lcv2Ym61mjHA==
+  dependencies:
+    follow-redirects "1.5.10"
+
+backo2@1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/backo2/-/backo2-1.0.2.tgz#31ab1ac8b129363463e35b3ebb69f4dfcfba7947"
+  integrity sha1-MasayLEpNjRj41s+u2n038+6eUc=
+
 balanced-match@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
 
+base64-arraybuffer@0.1.5:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/base64-arraybuffer/-/base64-arraybuffer-0.1.5.tgz#73926771923b5a19747ad666aa5cd4bf9c6e9ce8"
+  integrity sha1-c5JncZI7Whl0etZmqlzUv5xunOg=
+
 base64-js@^1.0.2:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.3.1.tgz#58ece8cb75dd07e71ed08c736abc5fac4dbf8df1"
@@ -438,6 +477,13 @@ batch@0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/batch/-/batch-0.6.1.tgz#dc34314f4e679318093fc760272525f94bf25c16"
 
+better-assert@~1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/better-assert/-/better-assert-1.0.2.tgz#40866b9e1b9e0b55b481894311e68faffaebc522"
+  integrity sha1-QIZrnhueC1W0gYlDEeaPr/rrxSI=
+  dependencies:
+    callsite "1.0.0"
+
 big.js@^5.2.2:
   version "5.2.2"
   resolved "https://registry.yarnpkg.com/big.js/-/big.js-5.2.2.tgz#65f0af382f578bcdc742bd9c281e9cb2d7768328"
@@ -452,6 +498,11 @@ bindings@^1.5.0:
   dependencies:
     file-uri-to-path "1.0.0"
 
+blob@0.0.5:
+  version "0.0.5"
+  resolved "https://registry.yarnpkg.com/blob/-/blob-0.0.5.tgz#d680eeef25f8cd91ad533f5b01eed48e64caf683"
+  integrity sha512-gaqbzQPqOoamawKg0LGVd7SzLgXS+JH61oWprSLH+P+abTczqJbhTR8CmJ2u9/bUYNmHTGJx/UEmn6doAvvuig==
+
 bluebird@^3.5.5:
   version "3.7.2"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.7.2.tgz#9f229c15be272454ffa973ace0dbee79a1b0c36f"
@@ -637,6 +688,11 @@ cache-base@^1.0.1:
     union-value "^1.0.0"
     unset-value "^1.0.0"
 
+callsite@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/callsite/-/callsite-1.0.0.tgz#280398e5d664bd74038b6f0905153e6e8af1bc20"
+  integrity sha1-KAOY5dZkvXQDi28JBRU+borxvCA=
+
 callsites@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/callsites/-/callsites-3.1.0.tgz#b3630abd8943432f54b3f0519238e33cd7df2f73"
@@ -780,10 +836,25 @@ commondir@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/commondir/-/commondir-1.0.1.tgz#ddd800da0c66127393cca5950ea968a3aaf1253b"
 
+component-bind@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/component-bind/-/component-bind-1.0.0.tgz#00c608ab7dcd93897c0009651b1d3a8e1e73bbd1"
+  integrity sha1-AMYIq33Nk4l8AAllGx06jh5zu9E=
+
+component-emitter@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.2.1.tgz#137918d6d78283f7df7a6b7c5a63e140e69425e6"
+  integrity sha1-E3kY1teCg/ffemt8WmPhQOaUJeY=
+
 component-emitter@^1.2.1:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.3.0.tgz#16e4070fba8ae29b679f2215853ee181ab2eabc0"
 
+component-inherit@0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/component-inherit/-/component-inherit-0.0.3.tgz#645fc4adf58b72b649d5cae65135619db26ff143"
+  integrity sha1-ZF/ErfWLcrZJ1crmUTVhnbJv8UM=
+
 compressible@~2.0.16:
   version "2.0.18"
   resolved "https://registry.yarnpkg.com/compressible/-/compressible-2.0.18.tgz#af53cca6b070d4c3c0750fbd77286a6d7cc46fba"
@@ -928,13 +999,20 @@ debug@2.6.9, debug@^2.2.0, debug@^2.3.3:
   dependencies:
     ms "2.0.0"
 
+debug@=3.1.0, debug@~3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
+  integrity sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==
+  dependencies:
+    ms "2.0.0"
+
 debug@^3.0.0, debug@^3.1.1, debug@^3.2.5:
   version "3.2.6"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
   dependencies:
     ms "^2.1.1"
 
-debug@^4.0.1, debug@^4.1.0, debug@^4.1.1:
+debug@^4.0.1, debug@^4.1.0, debug@^4.1.1, debug@~4.1.0:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/debug/-/debug-4.1.1.tgz#3b72260255109c6b589cee050f1d516139664791"
   dependencies:
@@ -1119,6 +1197,34 @@ end-of-stream@^1.0.0, end-of-stream@^1.1.0:
   dependencies:
     once "^1.4.0"
 
+engine.io-client@~3.4.0:
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/engine.io-client/-/engine.io-client-3.4.0.tgz#82a642b42862a9b3f7a188f41776b2deab643700"
+  integrity sha512-a4J5QO2k99CM2a0b12IznnyQndoEvtA4UAldhGzKqnHf42I3Qs2W5SPnDvatZRcMaNZs4IevVicBPayxYt6FwA==
+  dependencies:
+    component-emitter "1.2.1"
+    component-inherit "0.0.3"
+    debug "~4.1.0"
+    engine.io-parser "~2.2.0"
+    has-cors "1.1.0"
+    indexof "0.0.1"
+    parseqs "0.0.5"
+    parseuri "0.0.5"
+    ws "~6.1.0"
+    xmlhttprequest-ssl "~1.5.4"
+    yeast "0.1.2"
+
+engine.io-parser@~2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/engine.io-parser/-/engine.io-parser-2.2.0.tgz#312c4894f57d52a02b420868da7b5c1c84af80ed"
+  integrity sha512-6I3qD9iUxotsC5HEMuuGsKA0cXerGz+4uGcXQEkfBidgKf0amsjrrtwcbwK/nzpZBxclXlV7gGl9dgWvu4LF6w==
+  dependencies:
+    after "0.8.2"
+    arraybuffer.slice "~0.0.7"
+    base64-arraybuffer "0.1.5"
+    blob "0.0.5"
+    has-binary2 "~1.0.2"
+
 enhanced-resolve@4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/enhanced-resolve/-/enhanced-resolve-4.1.0.tgz#41c7e0bfdfe74ac1ffe1e57ad6a5c6c9f3742a7f"
@@ -1545,6 +1651,13 @@ flush-write-stream@^1.0.0:
     inherits "^2.0.3"
     readable-stream "^2.3.6"
 
+follow-redirects@1.5.10:
+  version "1.5.10"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.5.10.tgz#7b7a9f9aea2fdff36786a94ff643ed07f4ff5e2a"
+  integrity sha512-0V5l4Cizzvqt5D44aTXbFZz+FtyXV1vrDN6qrelxtfYQKW0KO0W2T/hkE8xvGa/540LkZlkaUjO4ailYTFtHVQ==
+  dependencies:
+    debug "=3.1.0"
+
 follow-redirects@^1.0.0:
   version "1.11.0"
   resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.11.0.tgz#afa14f08ba12a52963140fe43212658897bc0ecb"
@@ -1705,6 +1818,18 @@ handle-thing@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/handle-thing/-/handle-thing-2.0.1.tgz#857f79ce359580c340d43081cc648970d0bb234e"
 
+has-binary2@~1.0.2:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/has-binary2/-/has-binary2-1.0.3.tgz#7776ac627f3ea77250cfc332dab7ddf5e4f5d11d"
+  integrity sha512-G1LWKhDSvhGeAQ8mPVQlqNcOB2sJdwATtZKl2pDKKHfpf/rYj24lkinxf69blJbnsvtqqNU+L3SL50vzZhXOnw==
+  dependencies:
+    isarray "2.0.1"
+
+has-cors@1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/has-cors/-/has-cors-1.1.0.tgz#5e474793f7ea9843d1bb99c23eef49ff126fff39"
+  integrity sha1-XkdHk/fqmEPRu5nCPu9J/xJv/zk=
+
 has-flag@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
@@ -1895,6 +2020,11 @@ imurmurhash@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/imurmurhash/-/imurmurhash-0.1.4.tgz#9218b9b2b928a238b13dc4fb6b6d576f231453ea"
 
+indexof@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/indexof/-/indexof-0.0.1.tgz#82dc336d232b9062179d05ab3293a66059fd435d"
+  integrity sha1-gtwzbSMrkGIXnQWrMpOmYFn9Q10=
+
 infer-owner@^1.0.3:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/infer-owner/-/infer-owner-1.0.4.tgz#c4cefcaa8e51051c2a40ba2ce8a3d27295af9467"
@@ -2140,6 +2270,11 @@ isarray@1.0.0, isarray@^1.0.0, isarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
 
+isarray@2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/isarray/-/isarray-2.0.1.tgz#a37d94ed9cda2d59865c9f76fe596ee1f338741e"
+  integrity sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4=
+
 isexe@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/isexe/-/isexe-2.0.0.tgz#e8fbf374dc556ff8947a10dcb0572d633f2cfa10"
@@ -2566,6 +2701,11 @@ object-assign@^4.0.1, object-assign@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
 
+object-component@0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/object-component/-/object-component-0.0.3.tgz#f0c69aa50efc95b866c186f400a33769cb2f1291"
+  integrity sha1-8MaapQ78lbhmwYb0AKM3acsvEpE=
+
 object-copy@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/object-copy/-/object-copy-0.1.0.tgz#7e7d858b781bd7c991a41ba975ed3812754e998c"
@@ -2747,6 +2887,20 @@ parse-passwd@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/parse-passwd/-/parse-passwd-1.0.0.tgz#6d5b934a456993b23d37f40a382d6f1666a8e5c6"
 
+parseqs@0.0.5:
+  version "0.0.5"
+  resolved "https://registry.yarnpkg.com/parseqs/-/parseqs-0.0.5.tgz#d5208a3738e46766e291ba2ea173684921a8b89d"
+  integrity sha1-1SCKNzjkZ2bikbouoXNoSSGouJ0=
+  dependencies:
+    better-assert "~1.0.0"
+
+parseuri@0.0.5:
+  version "0.0.5"
+  resolved "https://registry.yarnpkg.com/parseuri/-/parseuri-0.0.5.tgz#80204a50d4dbb779bfdc6ebe2778d90e4bce320a"
+  integrity sha1-gCBKUNTbt3m/3G6+J3jZDkvOMgo=
+  dependencies:
+    better-assert "~1.0.0"
+
 parseurl@~1.3.2, parseurl@~1.3.3:
   version "1.3.3"
   resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.3.tgz#9da19e7bee8d12dff0513ed5b76957793bc2e8d4"
@@ -3300,6 +3454,35 @@ snapdragon@^0.8.1:
     source-map-resolve "^0.5.0"
     use "^3.1.0"
 
+socket.io-client@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/socket.io-client/-/socket.io-client-2.3.0.tgz#14d5ba2e00b9bcd145ae443ab96b3f86cbcc1bb4"
+  integrity sha512-cEQQf24gET3rfhxZ2jJ5xzAOo/xhZwK+mOqtGRg5IowZsMgwvHwnf/mCRapAAkadhM26y+iydgwsXGObBB5ZdA==
+  dependencies:
+    backo2 "1.0.2"
+    base64-arraybuffer "0.1.5"
+    component-bind "1.0.0"
+    component-emitter "1.2.1"
+    debug "~4.1.0"
+    engine.io-client "~3.4.0"
+    has-binary2 "~1.0.2"
+    has-cors "1.1.0"
+    indexof "0.0.1"
+    object-component "0.0.3"
+    parseqs "0.0.5"
+    parseuri "0.0.5"
+    socket.io-parser "~3.3.0"
+    to-array "0.1.4"
+
+socket.io-parser@~3.3.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/socket.io-parser/-/socket.io-parser-3.3.0.tgz#2b52a96a509fdf31440ba40fed6094c7d4f1262f"
+  integrity sha512-hczmV6bDgdaEbVqhAeVMM/jfUfzuEZHsQg6eOmLgJht6G3mPKMxYm75w2+qhAQZ+4X+1+ATZ+QFKeOZD5riHng==
+  dependencies:
+    component-emitter "1.2.1"
+    debug "~3.1.0"
+    isarray "2.0.1"
+
 sockjs-client@1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/sockjs-client/-/sockjs-client-1.4.0.tgz#c9f2568e19c8fd8173b4997ea3420e0bb306c7d5"
@@ -3629,6 +3812,11 @@ tmp@^0.0.33:
   dependencies:
     os-tmpdir "~1.0.2"
 
+to-array@0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/to-array/-/to-array-0.1.4.tgz#17e6c11f73dd4f3d74cda7a4ff3238e9ad9bf890"
+  integrity sha1-F+bBH3PdTz10zaek/zI46a2b+JA=
+
 to-arraybuffer@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/to-arraybuffer/-/to-arraybuffer-1.0.1.tgz#7d229b1fcc637e466ca081180836a7aabff83f43"
@@ -4018,6 +4206,18 @@ ws@^6.2.1:
   dependencies:
     async-limiter "~1.0.0"
 
+ws@~6.1.0:
+  version "6.1.4"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-6.1.4.tgz#5b5c8800afab925e94ccb29d153c8d02c1776ef9"
+  integrity sha512-eqZfL+NE/YQc1/ZynhojeV8q+H050oR8AZ2uIev7RU10svA9ZnJUddHcOUZTJLinZ9yEfdA2kSATS2qZK5fhJA==
+  dependencies:
+    async-limiter "~1.0.0"
+
+xmlhttprequest-ssl@~1.5.4:
+  version "1.5.5"
+  resolved "https://registry.yarnpkg.com/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz#c2876b06168aadc40e57d97e81191ac8f4398b3e"
+  integrity sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4=
+
 xtend@^4.0.0, xtend@~4.0.1:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.2.tgz#bb72779f5fa465186b1f438f674fa347fdb5db54"
@@ -4076,3 +4276,8 @@ yargs@13.2.4:
     which-module "^2.0.0"
     y18n "^4.0.0"
     yargs-parser "^13.1.0"
+
+yeast@0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/yeast/-/yeast-0.1.2.tgz#008e06d8094320c372dbc2f8ed76a0ca6c8ac419"
+  integrity sha1-AI4G2AlDIMNy28L47XagymyKxBk=